Merge "Make sure overview visibilty is GONE when it stops peeking" into ub-launcher3-master

package com.android.launcher3;

import static android.view.View.VISIBLE;

import static com.android.launcher3.LauncherState.NORMAL;

import static com.android.launcher3.LauncherState.OVERVIEW;

import static com.android.launcher3.LauncherState.OVERVIEW_PEEK;

import static com.android.launcher3.anim.Interpolators.DEACCEL;

import static com.android.launcher3.anim.Interpolators.DEACCEL_1_7;

import static com.android.launcher3.anim.Interpolators.INSTANT;

import static com.android.launcher3.anim.Interpolators.NEVER;

import static com.android.launcher3.anim.Interpolators.OVERSHOOT_1_2;

import static com.android.launcher3.anim.Interpolators.OVERSHOOT_1_7;

import static com.android.launcher3.anim.Interpolators.clampToProgress;

import android.os.Handler;

import android.os.Looper;

import androidx.annotation.IntDef;

import com.android.launcher3.anim.AnimationSuccessListener;

import com.android.launcher3.anim.AnimatorPlaybackController;

import com.android.launcher3.anim.AnimatorSetBuilder;

import java.lang.annotation.RetentionPolicy;

import java.util.ArrayList;

import androidx.annotation.IntDef;

/**

 * TODO: figure out what kind of tests we can write for this

 *

        } else if (fromState == NORMAL && toState == OVERVIEW_PEEK) {

            builder.setInterpolator(ANIM_OVERVIEW_FADE, INSTANT);

        } else if (fromState == OVERVIEW_PEEK && toState == NORMAL) {

            builder.setInterpolator(ANIM_OVERVIEW_FADE, NEVER);

            // Keep fully visible until the very end (when overview is offscreen) to make invisible.

            builder.setInterpolator(ANIM_OVERVIEW_FADE, t -> t < 1 ? 0 : 1);

        }

    }

    public static final Interpolator EXAGGERATED_EASE;

    public static final Interpolator INSTANT = t -> 1;

    public static final Interpolator NEVER = t -> 0;

    private static final int MIN_SETTLE_DURATION = 200;

    private static final float OVERSHOOT_FACTOR = 0.9f;